World 6-Bowser's Castle is the castle in World 6 of New Super Mario Bros. This level features intermittent Seesaws, along with spiked balls and Bowser sculptures. World 6-5 is the fifth normal level in World 6 of New Super Mario Bros. This level is ghost-based, and contains Crowbers and Lifts carried by Peepas. World 6-4 is the fourth normal level in World 6 of New Super Mario Bros. The level contains Burners, some of which are blocks that temporarily deactivate the Burners when hit. World 6-Tower is the tower of World 6 in the game New Super Mario Bros. This level takes place in a volcano containing raising lava, platforms that sink when Mario touches them, and Dry Bones. World 6-A is the first secret level in World 6 of New Super Mario Bros. It is an underground level containing Fire Bros and Stretch Shrooms. World 6-3 is the third normal level in World 6 of New Super Mario Bros. Mario must ride these platforms while avoiding Bullet Bills and Flame Chomps. This level contains platforms that change direction whenever he jumps on it. World 6-B is the second secret level in World 6 in New Super Mario Bros. This level takes place in a volcano, where Mario must ride segmented platforms while avoiding enemies such as Goombas and Para-bombs. World 6-2 is the second normal level of World 6, in the game New Super Mario Bros.

This level is a maze that involves many ? Switches, Warp Doors, and moving platforms. World 6-Ghost House is the Ghost House in World 6 of New Super Mario Bros. It is a volcano level that contains volcanic debris and POW Blocks. World 6-1 is the first level of the sixth world in New Super Mario Bros. The Rainbow Course, featuring coins that spin in circles and Mushroom Trampolines. There are eleven levels in this world, six of them are the normal levels, one of them is a Ghost House, one of them is a secret level and there is also a Rainbow Course, a Tower and a Castle level. There are four Toad Houses in this world, two green, one red, and one yellow. This world can be accessed by completing either World 5-Castle or World Flower-Warp Cannon. Wii and New Super Mario Bros., the former from which it reuses its music.

This world is a lava world, similar to World 8 of New Super Mario Bros. World 6 is the sixth and final normal world that appears in New Super Mario Bros.

Super mario bros 2 world 6